[PATCH v3 05/16] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_regs
From: cdall@kernel.org (Christoffer Dall)
Date: 2017-12-04 20:35:27
Also in:
kvm, kvmarm, linux-mips, linux-s390
Subsystem:
kernel virtual machine (kvm), kernel virtual machine for mips (kvm/mips), kernel virtual machine for powerpc (kvm/powerpc), kernel virtual machine for x86 (kvm/x86), kernel virtual machine for s390 (kvm/s390), linux for powerpc (32-bit and 64-bit), mips, s390 architecture, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Paolo Bonzini, Huacai Chen, Madhavan Srinivasan, Sean Christopherson, Christian Borntraeger, Janosch Frank, Claudio Imbrenda, Michael Ellerman, Thomas Bogendoerfer, Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
From: Christoffer Dall <redacted> Move vcpu_load() and vcpu_put() into the architecture specific implementations of kvm_arch_vcpu_ioctl_set_regs(). Signed-off-by: Christoffer Dall <redacted> --- arch/mips/kvm/mips.c | 3 +++ arch/powerpc/kvm/book3s.c | 3 +++ arch/powerpc/kvm/booke.c | 3 +++ arch/s390/kvm/kvm-s390.c | 2 ++ arch/x86/kvm/x86.c | 3 +++ virt/kvm/kvm_main.c | 2 -- 6 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index adfca57420d1..3a898712d6cd 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c@@ -1151,6 +1151,8 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; + vcpu_load(vcpu); + for (i = 1; i < ARRAY_SIZE(vcpu->arch.gprs); i++) vcpu->arch.gprs[i] = regs->gpr[i]; vcpu->arch.gprs[0] = 0; /* zero is special, and cannot be set. */
@@ -1158,6 +1160,7 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) vcpu->arch.lo = regs->lo; vcpu->arch.pc = regs->pc; + vcpu_put(vcpu); return 0; }
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index d85bfd733ccd..24bc7aabfc44 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c@@ -528,6 +528,8 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; + vcpu_load(vcpu); + kvmppc_set_pc(vcpu, regs->pc); kvmppc_set_cr(vcpu, regs->cr); kvmppc_set_ctr(vcpu, regs->ctr);
@@ -548,6 +550,7 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) kvmppc_set_gpr(vcpu, i, regs->gpr[i]); + vcpu_put(vcpu); return 0; }
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index e0e4f04c5535..bcbbeddc3430 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c@@ -1462,6 +1462,8 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; + vcpu_load(vcpu); + vcpu->arch.pc = regs->pc; kvmppc_set_cr(vcpu, regs->cr); vcpu->arch.ctr = regs->ctr;
@@ -1483,6 +1485,7 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) kvmppc_set_gpr(vcpu, i, regs->gpr[i]); + vcpu_put(vcpu); return 0; }
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 37b7caae2484..e3476430578a 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c@@ -2712,7 +2712,9 @@ static int kvm_arch_vcpu_ioctl_initial_reset(struct kvm_vcpu *vcpu) int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { + vcpu_load(vcpu); memcpy(&vcpu->run->s.regs.gprs, ®s->gprs, sizeof(regs->gprs)); + vcpu_put(vcpu); return 0; }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 597e1f8fc8da..75eacce78f59 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c@@ -7350,6 +7350,8 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { + vcpu_load(vcpu); + vcpu->arch.emulate_regs_need_sync_from_vcpu = true; vcpu->arch.emulate_regs_need_sync_to_vcpu = false;
@@ -7379,6 +7381,7 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) kvm_make_request(KVM_REQ_EVENT, vcpu); + vcpu_put(vcpu); return 0; }
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 843d481f58cb..963e249d7b79 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c@@ -2572,9 +2572,7 @@ static long kvm_vcpu_ioctl(struct file *filp, r = PTR_ERR(kvm_regs); goto out; } - vcpu_load(vcpu); r = kvm_arch_vcpu_ioctl_set_regs(vcpu, kvm_regs); - vcpu_put(vcpu); kfree(kvm_regs); break; }
--
2.14.2